/*
 * Copyright (C) 2016+     AzerothCore <www.azerothcore.org>, released under GNU GPL v2 license: https://github.com/azerothcore/azerothcore-wotlk/blob/master/LICENSE-GPL2
 * Copyright (C) 2008-2016 TrinityCore <http://www.trinitycore.org/>
 * Copyright (C) 2005-2009 MaNGOS <http://getmangos.com/>
 */

#ifndef OUTDOOR_PVP_H_
#define OUTDOOR_PVP_H_

#include "Util.h"
#include "SharedDefines.h"
#include "ZoneScript.h"

class GameObject;

enum OutdoorPvPTypes
{
    OUTDOOR_PVP_HP = 1,
    OUTDOOR_PVP_NA = 2,
    OUTDOOR_PVP_TF = 3,
    OUTDOOR_PVP_ZM = 4,
    OUTDOOR_PVP_SI = 5,
    OUTDOOR_PVP_EP = 6,
    OUTDOOR_PVP_GH = 7,
};

#define MAX_OUTDOORPVP_TYPES 8

enum ObjectiveStates
{
    OBJECTIVESTATE_NEUTRAL = 0,
    OBJECTIVESTATE_ALLIANCE,
    OBJECTIVESTATE_HORDE,
    OBJECTIVESTATE_NEUTRAL_ALLIANCE_CHALLENGE,
    OBJECTIVESTATE_NEUTRAL_HORDE_CHALLENGE,
    OBJECTIVESTATE_ALLIANCE_HORDE_CHALLENGE,
    OBJECTIVESTATE_HORDE_ALLIANCE_CHALLENGE,
};

// struct for go spawning
struct go_type
{
    uint32 entry;
    uint32 map;
    float x;
    float y;
    float z;
    float o;
    float rot0;
    float rot1;
    float rot2;
    float rot3;
};

// struct for creature spawning
struct creature_type
{
    uint32 entry;
    uint32 map;
    float x;
    float y;
    float z;
    float o;
};

// some class predefs
class Player;
class GameObject;
class WorldPacket;
class Creature;
class Unit;
struct GossipMenuItems;
class OutdoorPvP;

typedef std::set<uint64> PlayerSet;

class OPvPCapturePoint
{
public:

    OPvPCapturePoint(OutdoorPvP* pvp);

    virtual ~OPvPCapturePoint() {}

    virtual void FillInitialWorldStates(WorldPacket& /*data*/) {}

    // send world state update to all players present
    void SendUpdateWorldState(uint32 field, uint32 value);

    // send kill notify to players in the controlling faction
    void SendObjectiveComplete(uint32 id, uint64 guid);

    // used when player is activated/inactivated in the area
    virtual bool HandlePlayerEnter(Player* player);
    virtual void HandlePlayerLeave(Player* player);

    // checks if player is in range of a capture credit marker
    bool IsInsideObjective(Player* player) const;

    virtual bool HandleCustomSpell(Player* player, uint32 spellId, GameObject* go);

    virtual int32 HandleOpenGo(Player* player, uint64 guid);

    // returns true if the state of the objective has changed, in this case, the OutdoorPvP must send a world state ui update.
    virtual bool Update(uint32 diff);

    virtual void ChangeState() = 0;

    virtual void ChangeTeam(TeamId /*oldTeam*/) {}

    virtual void SendChangePhase();

    virtual bool HandleGossipOption(Player* player, uint64 guid, uint32 gossipid);

    virtual bool CanTalkTo(Player* player, Creature* c, GossipMenuItems const& gso);

    virtual bool HandleDropFlag(Player* player, uint32 spellId);

    virtual void DeleteSpawns();

    uint64 m_capturePointGUID;

    GameObject* m_capturePoint;

    void AddGO(uint32 type, uint32 guid, uint32 entry = 0);
    void AddCre(uint32 type, uint32 guid, uint32 entry = 0);

    bool SetCapturePointData(uint32 entry, uint32 map, float x, float y, float z, float o = 0,
                             float rotation0 = 0, float rotation1 = 0, float rotation2 = 0, float rotation3 = 0);

protected:

    bool AddObject(uint32 type, uint32 entry, uint32 map, float x, float y, float z, float o,
                   float rotation0, float rotation1, float rotation2, float rotation3);
    bool AddCreature(uint32 type, uint32 entry, uint32 map, float x, float y, float z, float o, uint32 spawntimedelay = 0);

    bool DelCreature(uint32 type);
    bool DelObject(uint32 type);

    bool DelCapturePoint();

protected:

    // active players in the area of the objective, 0 - alliance, 1 - horde
    PlayerSet m_activePlayers[2];

    // total shift needed to capture the objective
    float m_maxValue;
    float m_minValue;

    // maximum speed of capture
    float m_maxSpeed;

    // the status of the objective
    float m_value;

    TeamId m_team;

    // objective states
    ObjectiveStates m_OldState;
    ObjectiveStates m_State;

    // neutral value on capture bar
    uint32 m_neutralValuePct;

    // pointer to the OutdoorPvP this objective belongs to
    OutdoorPvP* m_PvP;

    // map to store the various gameobjects and creatures spawned by the objective
    //        type, guid
    std::map<uint32, uint64> m_Objects;
    std::map<uint32, uint64> m_Creatures;
    std::map<uint64, uint32> m_ObjectTypes;
    std::map<uint64, uint32> m_CreatureTypes;
};

// base class for specific outdoor pvp handlers
class OutdoorPvP : public ZoneScript
{
    friend class OutdoorPvPMgr;

public:

    // ctor
    OutdoorPvP();

    // dtor
    virtual ~OutdoorPvP();

    // deletes all gos/creatures spawned by the pvp
    void DeleteSpawns();

    typedef std::map<uint32/*lowguid*/, OPvPCapturePoint*> OPvPCapturePointMap;

    virtual void FillInitialWorldStates(WorldPacket& /*data*/) {}

    // called when a player triggers an areatrigger
    virtual bool HandleAreaTrigger(Player* player, uint32 trigger);

    // called on custom spell
    virtual bool HandleCustomSpell(Player* player, uint32 spellId, GameObject* go);

    // called on go use
    virtual bool HandleOpenGo(Player* player, uint64 guid);

    // setup stuff
    virtual bool SetupOutdoorPvP() {return true;}

    void OnGameObjectCreate(GameObject* go);
    void OnGameObjectRemove(GameObject* go);
    void OnCreatureCreate(Creature*) {}

    // send world state update to all players present
    void SendUpdateWorldState(uint32 field, uint32 value);

    // called by OutdoorPvPMgr, updates the objectives and if needed, sends new worldstateui information
    virtual bool Update(uint32 diff);

    // handle npc/player kill
    virtual void HandleKill(Player* killer, Unit* killed);
    virtual void HandleKillImpl(Player* /*killer*/, Unit* /*killed*/) {}

    // checks if player is in range of a capture credit marker
    bool IsInsideObjective(Player* player) const;

    // awards rewards for player kill
    virtual void AwardKillBonus(Player* /*player*/) {}

    uint32 GetTypeId() {return m_TypeId;}

    virtual bool HandleDropFlag(Player* player, uint32 spellId);

    virtual bool HandleGossipOption(Player* player, uint64 guid, uint32 gossipid);

    virtual bool CanTalkTo(Player* player, Creature* c, GossipMenuItems const& gso);

    void TeamApplyBuff(TeamId teamId, uint32 spellId, uint32 spellId2 = 0, Player* sameMapPlr = nullptr);

protected:

    // the map of the objectives belonging to this outdoorpvp
    OPvPCapturePointMap m_capturePoints;

    PlayerSet m_players[2];

    uint32 m_TypeId;

    bool m_sendUpdate;

    // world state stuff
    virtual void SendRemoveWorldStates(Player* /*player*/) {}

    void BroadcastPacket(WorldPacket& data) const;

    virtual void HandlePlayerEnterZone(Player* player, uint32 zone);
    virtual void HandlePlayerLeaveZone(Player* player, uint32 zone);

    virtual void HandlePlayerResurrects(Player* player, uint32 zone);

    void AddCapturePoint(OPvPCapturePoint* cp)
    {
        m_capturePoints[GUID_LOPART(cp->m_capturePointGUID)] = cp;
    }

    OPvPCapturePoint* GetCapturePoint(uint32 lowguid) const
    {
        OutdoorPvP::OPvPCapturePointMap::const_iterator itr = m_capturePoints.find(lowguid);
        if (itr != m_capturePoints.end())
            return itr->second;
        return nullptr;
    }

    void RegisterZone(uint32 zoneid);

    bool HasPlayer(Player const* player) const;

    void TeamCastSpell(TeamId team, int32 spellId, Player* sameMapPlr = nullptr);
};

#endif /*OUTDOOR_PVP_H_*/
